Picture plane grid viewer



FIG. 1 is a perspective view of a picture plane grid viewer showing mynew design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a cross-sectional view of the picture plane grid viewer takenalong line 4--4 of FIG. 3.

FIG. 5 is a cross-sectional view of the picture plane grid viewer takenalong line 5--5 of FIG. 3.

The ornamental design for a picture plane grid viewer, as shown anddescribed.